Путеводитель по Руководству Linux
  User  |  Syst  |  Libr  |  Device  |  Files  |  Other  |  Admin  |  Head  |


   sfdisk    ( 8 )

отображать или управлять таблицей разделов диска (display or manipulate a disk partition table)
  Name  |  Synopsis  |  Description  |  Commands  |  Options  |  Input formats  |  Empty disk label  |    Backing up the partition table    |  Colors  |  Environment  |  Note  |

BACKING UP THE PARTITION TABLE

It is recommended to save the layout of your devices. sfdisk supports two ways.

Use the --dump option to save a description of the device layout to a text file. The dump format is suitable for later sfdisk input. For example:

sfdisk --dump /dev/sda > sda.dump

This can later be restored by:

sfdisk /dev/sda < sda.dump

If you want to do a full (binary) backup of all sectors where the partition table is stored, then use the --backup option. It writes the sectors to ~/sfdisk-<device>-<offset>.bak files. The default name of the backup file can be changed with the --backup-file option. The backup files contain only raw data from the device. Note that the same concept of backup files is used by wipefs(8). For example:

sfdisk --backup /dev/sda

The GPT header can later be restored by:

dd if=~/sfdisk-sda-0x00000200.bak of=/dev/sda \ seek=$0x00000200 bs=1 conv=notrunc

Note that sfdisk since version 2.26 no longer provides the -I option to restore sectors. dd(1) provides all necessary functionality.